Spring Spring gRPC vulnerabilities
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Published CVEs affecting Spring Spring gRPC: 2 record(s), with affected versions and fixes.
CVE-2026-40969
Medium · 5.3
CWE-209 Apr 28, 2026
Spring gRPC AuthenticationException message reflected to remote client
The raw message of every server-side AuthenticationException is returned to the unauthenticated remote caller in the gRPC status description. This allows an attacker to obtain information about the authentication failure, which may be useful for further attacks.
Affected versions:
Spring gRPC: 1.0.0 - 1.0.2 (fixed in 1.0.3). Older, unsupported versions are also affected.
CVE-2026-40968
High · 8.8
CWE-653 Apr 28, 2026
Spring gRPC SecurityContext leaks across requests on authorization failure
When an authenticated user is denied access to a gRPC method, their authenticated identity remains bound to the gRPC worker thread and can be inherited by a subsequent unauthenticated request on the same thread. This may allow the subsequent user to gain escalated permissions.
Affected versions:
Spring gRPC: 1.0.0 - 1.0.2 (fixed in 1.0.3). Older, unsupported versions are also affected.